Carrier route record
ASDEN→ANC
Alaska Airlines · Denver to Anchorage
- Flights
- 128
- Period
- September 2025 to August 2026
- Share of route
- 15%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on DEN to ANC earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 128 flights, with a median arrival 10 minutes early.
Set against the rest of the country, Alaska's DEN to ANC record is 11 points better than the US average of 77.3%. That gap is worth roughly 107 fewer late arrivals for every thousand flights.
Key figures
On time
88.0%
Arrivals under 15 minutes late, of 125 completed flights
Avg delay
38 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
74.1%
Every carrier on DEN to ANC, 852 flights
These figures cover 128 flights between September 2025 and August 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Alaska against every carrier on DEN to ANC
Alaska flew 128 of the 852 flights on DEN to ANC, about 15% of it. Its 88.0% on time is 14 points better than the route as a whole, which runs 74.1%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Alaska at 88.0% to Southwest at 38.5%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Alaska Airlines (this page)thin sample | 128 | 88.0% | 38 min | 0.00% | A+ |
| United Airlines | 615 | 77.6% | 46 min | 0.00% | B+ |
| Southwest Airlinesthin sample | 109 | 38.5% | 60 min | 0.00% | F+ |
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Departure window
When Alaska runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 128 flights.
There are not enough flights in each departure window to split Alaska's DEN to ANC record by time of day without the percentages moving on noise. The headline rate of 88.0% is the reliable figure here.
Across the year
Alaska on DEN to ANC through the year
- Jul–Sep 20257 flights—
- Apr–Jun 202652 flights86.3%
- Jul–Sep 202669 flights89.6%
Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 88.0% on time across 128 flights.
Split by quarter, Alaska on DEN to ANC logged 7 flights in Jul–Sep 2025, 52 flights in Apr–Jun 2026 and 69 flights in Jul–Sep 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 88.0% annual figure is the one to use.
Arrival by arrival
How late Alaska on DEN to ANC runs when it is late
Alaska on DEN to ANC often beats the schedule: 47 of 125 completed flights, 38%, arrived 15 minutes or more early. The 15 late arrivals split 7 under half an hour, 5 between 30 and 60 minutes, and 3 an hour or more. Not one arrived two hours late.
- 15+ min early47 flights37.6%
- Within 15 min63 flights50.4%
- 15–29 min late7 flights5.6%
- 30–59 min late5 flights4.0%
- 1–2 hours late3 flights2.4%
- 2+ hours late0 flights0.0%
Scale runs 0% to 100%.
Share of 125 completed flights by arrival against schedule.
A late pushback is often recovered here: of 25 departures that left 15 minutes late or more, 12 still arrived on time. Only 2 left on time and still arrived late.
The worst days
Worst days for Alaska on DEN to ANC
The latest arrival of the period was on 4 August 2026, 1 hour 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 August 2026 | 1 hour 36 minutes | Carrier |
| 13 August 2026 | 1 hour 26 minutes | Carrier |
| 21 May 2026 | 1 hour 6 minutes | Carrier |
| 1 August 2026 | 49 minutes | Late-arriving aircraft |
| 27 June 2026 | 39 minutes | National Airspace System |
Delay causes
Why Alaska runs late on this route
Carrier accounts for 72% of the 576 delay minutes carriers reported here, and the remaining four split what is left.
- 72%Carrier
- 21%National Airspace System
- 6%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 72%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 415 of the 576 delay minutes reported here. The split is drawn from 576 reported delay minutes.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 2.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 2,405 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 89.8% on time across 128 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 128 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Alaska on DEN to ANC
Put together: treat all of this as provisional. 128 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 88.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 125 completed flights over 12 months sit behind that.
Related
Where to go next
- DEN to ANC, every carrier
- Alaska on ANC to DEN, the return leg
- United Airlines on DEN to ANC77.6%
- Southwest Airlines on DEN to ANC38.5%
- Alaska Airlines network-wide record
- Denver International (DEN) delay statistics
- How to read this site: grades, sample sizes, and honest caveats
- Denver, Salt Lake City, Phoenix and Las Vegas: the Mountain West hubs
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.